Valve for water-tanks.



E. A. NASLUNL VALVE POR WATER TANKS.

APPLIGAT-ION FILED FEB. 1, 190B.`

Pteted June 8, 1909.

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nitro A. NAsLUND, or DUNKIRK, NEW-YORK.

VALVE FOR WATER-TANKS.

Application filed February 1, 1906.

Specification of Letters Patent. q

Patented June 8, 1909. serial No. 298,934.

To all whom it may concern:

Be it known that I, ERIC A. NAsLUND, a citlzen ofthe United States,residing at Dunkirk, in the county of Chautauqua and State of New York,have invented certain new and useful Improvements in Valves for Water-'Ianks, of which the following is a specification.

This invention relates to improvements in valves, particularly adaptedfor use in watertanks stationed along railway-tracks for supplying waterto locomotives;.and it consists in certain improvements in constructionand combination of parts, to be hereinafter described and moreparticularly pointed out in the appended claims.

In the drawings,-Figure 1 is a vertical section of a water-tank equippedwith my improved valve. Figs. 2 and 3 are vertical sections of myimproved valve, showing the plungers in different positions. Fig. 4 is atransverse section taken on line 4 4, Fig. 2.

Referring to the drawings in detail, like letters of reference refer tolike parts in the several figures.

The reference letter A designates the water-tank having an outlet-pipe Band an inlet or supply pipe C to which my improved valve D is secured.

At its upper end pipe C is provided with a T-shaped fitting D1 having areduced upper end d into which is threaded a pipe E closed at its upperend by a cap F to provide an airchamber G within said pipe. Connectedwith said T-shaped fitting is a short pipe or nipple H which serves asthe outlet of the sup ly-pipe and is disposed at an angle to saiair-chamber; said pipe or ni ple enters the side of the intermediate memer I of the valve, which is also in the form of a T-shaped fittinghaving threaded into its upper end a short pipe section J, and at itslower end a flaring outlet-member K provided with an internal annularflange L near its upper end which serves as a valve-seat and a pluralityof longitudinal guide-flanges M projecting inward from the flaring walland extending from said valve-seat L to the large or outlet end of saidoutlet member. Said flanges have their inner guide-edges m parallel andthey are separated by intervening spaces N which serve as water passagesand by reason of said flanges being gradually widened toward the bottomor outlet ends of said passages, the latter are correspondinglyenlarged, thus allowing a free discharge of the -water through thecasingirrespective of the extent to which the valve is opened. This assures asteady action without pounding and provides the required floatresistance. Guided for movement by said flanges is a valve or plunger Oadapted to close against the valve-seat L. Owing to theguideflan es Mextending from the valve-seat to the arge or outlet end of the flaringoutletmember; said flanges are exposed and accessible so that theparallel guide-edges can be greased without separating the several partsof the valve. Said valve or plunger closes against the water pressureand is afxed to a rod P having its u per end projecting beyond the upperend o the valve-casing for connection with a float-lever R pivotallysecured between lugs f on the cap F and having at its free end a floatS. The connection between the rod P and the lever R is such as to permitthe plunger O to travel vertically without tendency to bind or wabblethis being accomplished by roviding the float-lever with a slot r througwhich and the bifurcated upper end of rod P, a pivot-pinp is passed.

Secured to rod P so as to travel in the upper portion of thevalve-casing is an equalizing plunger U in the form of a cupped leatherdisk, adapted to equalize the pressure of the water as it enters thevalvecasing.

By means of the construction described, the valve-casing andpipe-connections may be constructed from standard pipe-fittings with theexception of the flaring outletmember K, thus providing for theconstruction of a very cheap yet effective valve.

It is apparent from the foregoing, that the flow of water through thevalve-casing is gradually increased as the plungers lower, and that byreason of the plungers being controlled by float-lever R, the flow isincreased in proportion to the amount of water drawn from the tank. Theclosing of' the plunger is also gradual and by reason of the cushioningeffect of the air within air-chamber G, waterhammering is avoided, whichwould tend to subject the plunger to a jarring action.

I-Iaving thus described my invention, what I claim is,-

1. A valve comprising a casing flared toward its outlet-end and having avalve-seat at its inlet-end and arallel edged guide-ribs extending fromsaidpvalve-seat toward said outlet-end and separated by water passagesgradually increasing in areas toward said l outlet-end, and acylindrical valve guided between the parallel edges of said guide-ribsand adapted to close against said Valve-seat.

2. A Valve Comprising a easing having an inlet intermediate its ends andincluding a flaring member arranged to one side of said ribs and adaptedto close against said valveseat and against the water-pressure, anequaliZing-plunger at the opposite side of l5 said inlet connected withsaid Valve7 and a loat connected with said eqnalizing-plunger.

In testimony whereof, l have a-[Iixed my signature in the presence oi'two subscribing inlet, said flaring-member having a Valvee Witnesses. gseat at its small or inlet end and exposed ERIC A. NASLUND.parallel-edged guide-ribs extending from Witnesses:

said Valve-seat toward its large or outlet end,

MAY F. SEWERT, a cylindrical valve guided between said gu1de- EMILNEUHART.

